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Transmission

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50cc Bike Gearboxes Chains and Sprockets Gear Drives Transmission Accessories
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Chain Chain accessories Chain guard Chain guide Chain kit Chain master link Chain roller Chain slider Chain tensioner Clutch accessories Clutch kit Crankshaft accessories Front sprocket Gearbox Gearbox accessories Gearbox bearing kit Kickstarter accessories Chain rear sprocket Screws other Transmission Transmission accessories Transmission gear
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AFAM Avoc Beta Bidalot Conti Derbi Doppler IGM Jasil KRM Moose Racing MotoForce MotoForce Racing Piaggio Polisport Rieju Stage6 Standard Parts STR8 Top Performances Voca Racing Yamaha
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AFAM
Chain Kit AFAM 12x56 Beta RR 1999 - 2001
Article no.: AFAMKS-A-149

Chain Kit AFAM 12x56 Beta RR 1999 - 2001

73,00 €
Currently not in stock
AFAM
Chain Kit AFAM 11x48 Yamaha DT 2003 - 2006
Article no.: AFAMKS-A-118

Chain Kit AFAM 11x48 Yamaha DT 2003 - 2006

39,50 €
Currently not in stock
AFAM
Chain Kit AFAM 11x47 Rieju RS2
Article no.: AFAMKS-A-127

Chain Kit AFAM 11x47 Rieju RS2

42,50 €
Currently not in stock
Yamaha
Transmission Gear Shaft Minarelli AM6
Article no.: OE-AM4YVE74210000

Transmission Gear Shaft Minarelli AM6

174,00 €
Currently not in stock
Yamaha
Transmission Gear Shaft Minarelli AM6
Article no.: OE-AM4YVE74111000

Transmission Gear Shaft Minarelli AM6

174,00 €
Currently not in stock
Yamaha
Gear 6th 24 teeth Minarelli AM6
Article no.: OE-AM4YVE72610000

Gear 6th 24 teeth Minarelli AM6

120,00 €
Currently not in stock
Yamaha
Gear 5th 25 teeth Minarelli AM6
Article no.: OE-AM4YVE72510000

Gear 5th 25 teeth Minarelli AM6

120,00 €
Currently not in stock
Yamaha
Gear 4th 27 teeth Minarelli AM6
Article no.: OE-AM4YVE72410000

Gear 4th 27 teeth Minarelli AM6

97,00 €
Currently not in stock
Yamaha
Gear 3rd 29 teeth Minarelli AM6
Article no.: OE-AM4YVE72310000

Gear 3rd 29 teeth Minarelli AM6

97,00 €
Currently not in stock
Yamaha
Gear 1st 36 teeth Minarelli AM6
Article no.: OE-AM4YVE72111000

Gear 1st 36 teeth Minarelli AM6

97,00 €
Currently not in stock
Yamaha
Gear 6th 25 teeth Minarelli AM6
Article no.: OE-AM4YVE71610000

Gear 6th 25 teeth Minarelli AM6

97,00 €
Currently not in stock
Yamaha
Gear 5th 24 teeth Minarelli AM6
Article no.: OE-AM4YVE71510000

Gear 5th 24 teeth Minarelli AM6

97,00 €
Currently not in stock
Yamaha
Gear 3rd and 4th 19/22 teeth Minarelli AM6
Article no.: OE-AM4YVE71311000

Gear 3rd and 4th 19/22 teeth Minarelli AM6

120,00 €
Currently not in stock
Yamaha
Gear 2nd 24 teeth Minarelli AM6
Article no.: OE-AM4YVE71211000

Gear 2nd 24 teeth Minarelli AM6

120,00 €
Currently not in stock
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The gearbox - tuning via gear ratio

The gearbox or transmission is a mechanical device that transmits a motion from one part to another, with the possibility of changing speed and torque by gearing up or gearing down. In a scooter, there is the primary transmission (input shaft to torque drive + intermediate shaft) and secondary transmission (intermediate shaft + output shaft to wheel). The gear ratio has a great impact on acceleration and top speed. A short gear ratio gives good acceleration, but is a little weak on speed, which can be compensated by a longer gear ratio.

Since the gearbox is a very complex subject, here we have a gearbox tutorial for you that will help you choose your new gear ratio.

The complex world of gear ratios

Do you simply want to replace gearbox components because they are defective or worn? Or do you want to adjust the gear ratio after upgrading to a more powerful cylinder? In both cases, we recommend replacing both primary and secondary gears at the same time.

For very powerful engines, we recommend selecting the gears in a way that the final drive ratio can adequately convert the power delivered by the engine. Using a longer gear ratio may actually worsen acceleration, so you should always match the gearbox to the available RPM. Longer does not always mean better, it is best to get enough information before installing new gears!

In our online store we carry a wide range of individual gears and complete gearboxess for most scooters, mopeds and maxi scooters. Leading brands such as

offer top quality products at fair prices, with which you can improve the performance of your engine.

If you simply want to overhaul your gearbox, we also carry original spare parts for you, for manufacturers like

and many more.

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